package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.BaseContext;
import com.itheima.reggie.common.R;
import com.itheima.reggie.domain.*;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private DishFlavorService dishFlavorService;


    @Autowired
    private SetmealService setmealService;

    @PostMapping
    public R<String> save(@RequestBody Dish dish){
        log.info("Dish{}",dish);
        dishService.save(dish);
        return R.success("添加菜品成功");
    }


    /*@GetMapping("/page")
    public R<Page> page(int page, int pageSize){
        //分页构造器
        Page<Dish> pageInfo = new Page<>(page,pageSize);
        //条件构造器
        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort进行排序
        lqw.orderByAsc(Dish::getSort);
        //分页查询
        dishService.page(pageInfo,lqw);
        return R.success(pageInfo);
    }*/

    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
   /* @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.saveWithFlavor(dishDto);

        return R.success("新增菜品成功");
    }*/
    /**
     * 菜品信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage =new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null,Dish::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //执行分页查询
        dishService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");
        List<Dish> records =pageInfo.getRecords();
        List<DishDto> list=records.stream().map((item)->{

            DishDto dishDto =new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }
    /**
     * 根据id查询菜品信息和对应的口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    //@PathVariable : 该注解可以用来提取url路径中传递的请求参数。
    public R<DishDto> get(@PathVariable Long id){
        DishDto dishDto=dishService.getByIdWithFlavor(id);
        return R.success(dishDto);
    }


    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());
        dishService.updateWithFlavor(dishDto);
        return R.success("修改菜品成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    /*@GetMapping("/list")
    public R<List<Dish>> list(Dish dish){
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        return R.success(list);
    }*/

    @GetMapping("list")
    public R<List<DishDto>> list (Dish dish){
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        //根据分类ID查询，查询目前正在启售的菜品列表 (已实现)
        queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        //获取分类里面的所有菜品
        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> dishDtoList = list.stream().map((item) -> {
            //创建一个dto利用工具把dish的值赋值到dishdto
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            //获取分类id
            Long categoryId = item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            //根据菜品id查找口味
            lambdaQueryWrapper.eq(DishFlavor::getDishId, dishId);
            //SQL:select * from dish_flavor where dish_id = ?
            //获取菜品口味赋值到dishdto
            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);

            return dishDto;
        }).collect(Collectors.toList());


        return R.success(dishDtoList);
    }

    //启售 停售
    @PostMapping("status/{status}")
    public R<String> status(@PathVariable int status,@RequestParam List<Long> ids ){
        log.info("ids{}",ids);
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.in(Dish::getId,ids);
        List<Dish> list = dishService.list(queryWrapper);

        list.stream().forEach(x->x.setStatus(status));
        dishService.updateBatchById(list);

        return R.success("修改菜品状态成功");
    }


    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("ids{}",ids);
        dishService.removeWithDish(ids);
        return R.success("删除成功");
    }


}
